The half of her face that is missing because of the shadow, to me, takes away from the pic. And maybe a tighter cropping might give it a different look you'd like more.
I like the pose, the way her hair flows, her expression.

I think the shadows create a mysterious fashion feel to this image...if I were to try anything different it would have been maybe a tighter crop because the way she is pressing her arm in seems to make it appear a bit larger than it is.
but the Shadows must stay or its just another pretty,and flat lit image BLAH!!!
Shadows rock!!!!